[Interest] kf5 and qt5.6 problems

[Jerome]

from my code, #include<KF5/Solid/Solid/DevieInterface>
goes on /usr/include/deviceinterface.h

sudo find /usr -name deviceinterface.h -type f

/usr/include/KF5/Solid/solid/deviceinterface.h
/usr/include/solid/deviceinterface.h

but why QT5.6 decide alone to go search this file i never ask for that.
Also, what i can do for tell him to go where he has to go ?